[Python-ideas] get method for sets?

[Masklinn]

On 2012-05-16, at 20:19 , Chris Rebert wrote:

> Objective-C's NSSet calls it "anyObject" and doesn't specify much
> about it (in particular, its behavior when called repeatedly), mainly
> just that "the selection is not guaranteed to be random". I haven't
> poked around to see how it actually behaves in practice.

It takes the first object it finds which is pretty much solely a
property of how it stores its items, its behavior translated into Python
code is precisely:

    next(iter(set))

or

    list(set)[0]

I just tested creating a few thousand sets and filling them with random
integer values (using arc4random(3)) and never once did [set anyObject]
differ from [[set allObjects] objectAtIndex:0] or from
[[set objectEnumerator] nextValue].